SIMPLEX TRADING, LLC

Position in PLSE — Pulse Biosciences, Inc.

CIK 1488542 CHICAGO, IL

Position in PLSE

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$11,646

+$11,643 QoQ

Shares Held

420

+104.9% QoQ

Ownership

0.001%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#80

of 105 holders

Holding Since

Jun 2020

17 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

SIMPLEX TRADING, LLC holds $12,800,862 across 24 Medical Instruments & Supplies names. PLSE ranks #21 (0.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ALGN	Align Technology Inc	16,354	$2,758,265
2	RMD	Resmed Inc	14,089	$2,745,664
3	ISRG	Intuitive Surgical Inc	6,086	$2,420,280
4	RGEN	Repligen Corp	9,820	$1,339,840
5	SOLV	Solventum Corp	12,762	$984,588
6	WRBY	Warby Parker Inc.	16,579	$503,006
7	ALC	Alcon Inc	7,266	$487,548
8	XRAY	DENTSPLY SIRONA Inc.	44,368	$470,744

17 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$11,646	420	+104.9%	Shares	Sole	2026-08-12
2025-09-30	$3	205	-76.2%	Shares	Sole	2025-11-12
2025-06-30	$12,992	861	-38.5%	Shares	Sole	2025-08-05
2025-03-31	$22,526	1,400	+345.9%	Shares	Sole	2025-05-12
2024-12-31	$5,466	314	-32.5%	Shares	Sole	2025-02-11
2024-06-30	$5,203	465	-98.5%	Shares	Sole	2024-07-25
2024-03-31	$265,698	30,505	-11.0%	Shares	Sole	2024-04-25
2023-12-31	$419,746	34,293	+521.7%	Shares	Sole	2024-02-02
2023-06-30	$39,660	5,516	-40.1%	Shares	Sole	2023-08-04
2022-12-31	$25,489	9,202	+524.3%	Shares	Sole	2023-02-02
2022-06-30	$2,255	1,474	+191.9%	Shares	Sole	2022-08-03
2021-09-30	$10,908	505	+138.2%	Shares	Sole	2021-10-28
2021-06-30	$3,476	212	-95.8%	Shares	Sole	2021-08-12
2021-03-31	$118,589	5,008	+781.7%	Shares	Sole	2021-04-26
2020-12-31	$13,552	568	-34.9%	Shares	Sole	2021-02-02
2020-09-30	$10,292	873	-28.0%	Shares	Sole	2020-10-14
2020-06-30	$12,677	1,212	—	Shares	Sole	2020-07-13
No filing history on record for this holder in this stock.